This has a lot of errors, including punctuation (remaining constant Personnel <needs a period) and grammar (and must be allowed to have a time to allow the reactor to cool down <is extremely repetitive). Just make sure to go back through and do a second readthrough to try and catch those little errors.

As for the article itself, it's just rather boring. It's very short, and there's nothing in here that holds my interest—Nazi paratech isn't exactly a new idea, and this doesn't do anything to separate itself from the pack. It needs some sort of hook to it, some story or strange feature that elevates it and gives the reader something interesting to read.

On a technical note: Why would the suit automatically return to our dimension after the fuel runs out? Does the suit use the energy to stay in the other dimension?

While Nazis are over done, cold war Russian tech would make more sense for nuclear technology.

For containment: just say digital lock, adding 18 digits is too much information. For technical writing, unless there is a specific reason for details they should not be included.

To make this SCP more interesting instead of describing the alternate dimension with the description of the SCP place it in a audio log for a test or a log of a test when the original owners were using it. A little history and purpose for the device will make it more interesting.